Android: Multi-tasking is one of the things that makes Android tablets better than the iPad. There are already apps like Task Changer to switch between apps quickly, but Loopr makes it even simpler with a hotspot on your screen that activates a task switcher.

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You can configure the area for the hotspot on either side of the screen, along with the number of seconds your finger needs to be there for Loopr to open. It pops up as a half-circle of app icons (with their names) that you can cycle through and switch between without ever lifting your finger. It sounds like a small thing, but the more I use it, the faster I'm getting at switching between apps.

People hold their phone differently, so I'd recommend you first figure out where your thumb naturally rests when you hold your phone. I've set up the hotspot just a tad lower than that to trigger Loopr, so it's easy to access all the apps in the natural arc of my thumb.